VCO Sub



The Analogue Solutions VCO-Sub is a single VCO laid out in a similar way to the VCO section you would find on a monosynth. The VCO-Sub includes a glide (slew) function, so this is a great bonus. The VCO can go down to low frequencies so they can be used as an LFO.

Controls In Detail

The VCO-Sub has a wide ranging Tune control. Turning Tune alters the basic pitch of the oscillator. Turning up Glide adds portamento to the oscillator, so the pitch will bend (slide) up or down to each note (as opposed to a sudden change). The higher the setting, the longer the oscillator takes to reach its new note. Not many VCO modules give you the all important Glide control as standard! You can alter the pulse width (duty cycle) of the square wave. Turning this gives a sound similar to chorusing. In the centre position a square wave is produced. Sawtooth Level sets the output volume of the sawtooth waveform output. Square Level sets the output volume of the square waveform output.

Sockets in Detail

CV in is the pitch CV control input and is used to control the pitch of the oscillator. PW is a pulse width control CV input. Use a -12 to +12V voltage in this socket to alter the pulse width of the oscillator square wave. Sync In is an oscillator Sync reset input. Sawtooth Out is the audio output for the sawtooth waveform. Its level is affected by the sawtooth level pot. Square Out is the audio output for the square waveform. Its level is affected by the square level pot. Sub 1 Out is a Sub-Osc output 1 octave below the main saw/square outputs. Sub 2 Out is a Sub-Osc output 2 octaves below the main saw/square outputs. Sub 3 Out is a Sub-Osc output 3 octaves below the main saw/square outputs.

Note: the Sub outputs run off the main square wave. If PWM is applied to the square wave, it may affect the Sub outputs!

General Specification

Inputs

CV, PW, SYNC

Outputs

SAW, SQUARE, SUB1, SUB2, SUB3

Controls

Tune, Glide, Pulse Width, Saw Level, Square Level

Size

12HP, 3U Euro rack

Power

+/-12V, GND using Doepfer power socket.

This module needs 5V for the Sub oscillator to work. If the Sub does not work then your Doepfer power supply needs Doepfer's 5V option.